Unitor HPC 30/1, Instruction Manual

Page: 14 / 84

Original instruction 14
Troubleshooting HPC 30/1
Fault Cause Remedy
Pressure
fl uctuations
Air in suction hose. Fill hose with water and connect again
Not enough water supply Stop! Until appropriate water mains or hose reflect
pump Qmax
Water filter is clogged up Rinse the water filter -
C 5.0
High pressure nozzle blocked/worn Clean or replace the nozzle with same size
Suction height exceeded Stop! until max suction height is present as specified
Foam
Sprayer
not produc-
ing foam
Detergent used is non-foaming Use only detergents with foaming agent.
Nozzle on suction hose is clogged up
or filled with dried out soap
Rinse detergent limiter / flush with tempered clean
water.
Foam sponge in foam Sprayer is
clogged up.
1 Rinse/soak foam Sprayer in tempered water for 8
hours or more
2 Or dismount front of foam Sprayer and exchange/
rinse the SS foam sponge with a new
Detergent tank empty Top up detergent tank
Motor does
not start
or bozzes
when
switched
on
Power cable broken Contact professional electrician for replacement of
power cable
Plug is not inserted in mains Insert plug
Mains fuse is blown Reset power mains
Plug has a loose connection to cable Repair/reassemble plug on cable - skilled electrician
The pump is blocked or frozen Stop! Unfreeze pump or contact dealer service depart-
ment
The thermal protector is activated Stop! Cool off machine for at least 5 minutes
Maintenance plan
Weekly
First time after 50 operating
hours
Every 200 operating
hours
As required
Cleaning
water fi lter
A1.1 A1.1
Checking oil
level/tip up
B1.0/E1.2
Changing
pump oil
Contact dealer/service dpt. Contact dealer/service dpt.
Special operating instructions
Self-suction
0: Dismount HP hose from the machine.
1: Fill the suction hose with water and connect to High
Pressure Washer (Item no. 6400000)
2: Mount suction hose with a hose clamp on the pump
inlet.
3: Turn main switch to ¨I¨ for few seconds. Repeat
turning main switch on and off several times until water
comes out of pump.
4: Mount the HP hose, spray handle and lance.
5: Turn main switch to ¨I¨.
6: Unlock the spray handle and operate it several times
until water coming out without air.
Parts needed for suction Item number
1 x Hose Nozzle 20R 3/4¨ 61369
1 x Hose 3/4¨ Max length 5 mtr
1 x Hose Clamp 3/4¨
1 x Suction Filter with foot-valve 6400000